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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 11 — Jun. 1, 2009
  • pp: 1735–1737

Vertically integrated As 2 S 3 ring resonator on LiNbO 3

Mehmet E. Solmaz, Donald B. Adams, Wee C. Tan, William T. Snider, and Christi K. Madsen  »View Author Affiliations

Optics Letters, Vol. 34, Issue 11, pp. 1735-1737 (2009)

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Titanium-diffused lithium niobate ( Ti : LiNbO 3 ) waveguides are widely used in current fiber optic networks because of their high-speed, electro-optic modulation, and low-loss integration with standard single-mode fibers. However, they cannot achieve small ring resonators owing to their lack of a high core-to-cladding index contrast. To overcome this challenge, we vertically integrate an emerging chalcogenide glass waveguide technology on well-established Ti : LiNbO 3 waveguides. We present, to our knowledge, the first arsenic trisulfide ( As 2 S 3 ) race-track ring resonator with a 290.8 μ m bend radius in an all-pass filter configuration, integrated on a Ti : LiNbO 3 waveguide. Vertical coupling is achieved using a unique taper design. Experimental results are shown for 10.6% coupling, 2.08 dB roundtrip loss, and a 25.4 GHz free-spectral range.

© 2009 Optical Society of America

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.5750) Optical devices : Resonators
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Optical Devices

Original Manuscript: March 9, 2009
Revised Manuscript: April 23, 2009
Manuscript Accepted: April 26, 2009
Published: May 29, 2009

Mehmet E. Solmaz, Donald B. Adams, Wee C. Tan, William T. Snider, and Christi K. Madsen, "Vertically integrated As2S3 ring resonator on LiNbO3," Opt. Lett. 34, 1735-1737 (2009)

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